package com.battleship;

import static com.battleship.CommonUtilities.*;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

import com.google.android.gcm.GCMBaseIntentService;
import com.battleship.ServerUtilities;

public class GCMIntentService extends GCMBaseIntentService{
	
	private static final String TAG = "GCMIntentService";
	
	public GCMIntentService(){
		super(SENDER_ID);
	}

	@Override
	protected void onMessage(Context context, Intent intent) {
		Log.i(TAG, "Received message");
        String message = getString(R.string.gcm_message);
        displayMessage(context, message);
        // notifies user
        generateNotification(context, message);
		
	}

	@Override
	protected void onRegistered(Context context, String regId) {
		Log.i(TAG, "Device registered: regId = " + regId);
		displayMessage(context, getString(R.string.gcm_registered));
        ServerUtilities.register(context, regId);
		
	}

	@Override
	protected void onUnregistered(Context context, String regId) {
		Log.i(TAG, "Device unregistered");
        displayMessage(context, getString(R.string.gcm_unregistered));
        ServerUtilities.unregister(context, regId);
		
	}
	
	@Override
    public void onError(Context context, String errorId) {
        Log.i(TAG, "Received error: " + errorId);
        displayMessage(context, getString(R.string.gcm_error, errorId));
    }
	
	@Override
    protected boolean onRecoverableError(Context context, String errorId) {
        // log message
        Log.i(TAG, "Received recoverable error: " + errorId);
        displayMessage(context, getString(R.string.gcm_recoverable_error,
                errorId));
        return super.onRecoverableError(context, errorId);
    }
	
	 /**
     * Issues a notification to inform the user that server has sent a message.
     */
    private static void generateNotification(Context context, String message) {
    	int icon = R.drawable.icon;
        long when = System.currentTimeMillis();
        NotificationManager notificationManager = (NotificationManager)
                context.getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = new Notification(icon, message, when);
        String title = context.getString(R.string.app_name);
        Intent notificationIntent = new Intent(context, InternetGameActivity.class);
        // set intent so it does not start a new activity
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
                Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent intent =
                PendingIntent.getActivity(context, 0, notificationIntent, 0);
        notification.setLatestEventInfo(context, title, message, intent);
        notification.flags |= Notification.FLAG_AUTO_CANCEL;
        notificationManager.notify(0, notification);
    }

}

